Jeff Atwood, on his Coding Horrors website, posts about Digital SSL certificates bringing up several criticisms. However, his arguments appear to be very weak.
Verifying that the person you are issuing a certificate to is the owner of the domain name included in the certificate is (or should be) a high priority for all certificate authorities. This is made clear in the wake of DNS poisoning incidents.
Justin Fielding posted about the different SSL certificate options including Extended Validation, SGC, standard SSL, and domain-validated SSL and the advantages and disadvantages of each.
VeriSign published a case study analyzing how EV SSL Certificates have decreased Overstock.com's shopping cart abandon rate by 8.6%.
150 Million VeriSign Seals Viewed on Cyber Monday demonstrating the increase of e-commerce.
An article discussed how taking security measures on your web site can increase conversion.
After a serious problem with site seal misuse was reported, The Inquirer reports on how VeriSign is touting the new EV SSL Certificates.
If you have more than one SSL enabled website using the same IP address you may need to configure SSL Host Headers. This tutorial will walk you through the process.
The Merchants Risk Council, whose mission statement is to "to make the internet a preferred place to shop and sell", is recommending that e-commerce sites adopt extended validation certificates in place of their current SSL certificates.
G-Loaded wrote about how certificate authorities get their root certificates embedded in web browsers so that they are automatically trusted.